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USE AS ION-EXCHANGE MEMBRANES AND BATTERY SEPARATORS

Award Information

Agency:
Department of Energy
Branch:
N/A
Award ID:
1249
Program Year/Program:
1984 / SBIR
Agency Tracking Number:
1249
Solicitation Year:
N/A
Solicitation Topic Code:
N/A
Solicitation Number:
N/A
Small Business Information
EXFLUOR RESEARCH CORP.
2350 DOUBLE CREEK DRIVE Round Rock, TX 78664
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Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No
 
Phase 1
Fiscal Year: 1984
Title: USE AS ION-EXCHANGE MEMBRANES AND BATTERY SEPARATORS
Agency: DOE
Contract: N/A
Award Amount: $50,000.00
 

Abstract:

EXFLUOR RESEARCH CORPORATION ALONG WITH PROFESSOR RICHARD J. LAGOW AT THE UNIVERSITY OF TEXAS AT AUSTIN HAVE DEVELOPED A NEW SYNTHETIC METHOD FOR PREPARING FLUOROCARBON MEMBRANE MATERIAL. THE PROCEDURE CONSISTS OF FIRST SYNTHESIZING A HYDROCARBON PRECURSOR, INTRODUCING CROSS-LINKS AND THEN FLUORINATING WITH ELEMENTAL FLUORINE. THIS METHOD PERMITS WIDE FLEXIBILITY IN THE STRUCTURAL FEATURES OF THE MEMBRANE. WE HAVE PREPARED MEMBRANES WITH BOTH ISOLATED AND VICINAL CARBOXYLIC ACID FUNCTIONS BY THIS METHOD. IN THIS EXAMPLE A POLYETHYLENE MATRIX WITH THE APPROPRIATE FUNCTIONAL GROUPS WAS PREPARED, CROSS-LINKED WITH RADIATION AND FLUORINATED TO CONVERT C-H TO C-F BONDS. THE MEMBRANES OBTAINED FROM THIS PREPARATION AFTER HYDROLYSIS IN AQUEOUS ACID WERE SHOWN TO BE CONDUCTIVE. CONDUCTIVITIES OF 5 OHM/CM(1) HAVE ALREADY BEEN OBTAINED VALUES OF 3 OHM/CM(1) ARE THOUGHT TO BE READILY ATTAINABLE. THE SUCCESS OF THE "OXYFLUORINATION" PROCESS FOR MAKING FUNCTIONALIZED POLYMERS HAS ALREADY BEEN DEMONSTRATED IN PROFESSOR LAGOW'S ACADEMIC LABORATORY. USING FURTHER TECHNOLOGY DEVELOPED AT EXFLUOR RESEARCH CORPORATION, NEW CANDIDATES FOR ION-EXCHANGE MEMBRANES WILL BE EXAMINED. FILMS ALREADY PREPARED BY THIS METHOD HAVE BEEN SHOWN TO HAVE RESISTANCES OF LESS THAN 5 OHM-CM(2) AND ARE STABLE IN AGGRESIVE ENVIRONMENTS. THE DEGREE OF CROSS-LINKING WILL BE VARIED AND THE EFFECTS ON MEMBRANE PERFORMANCE WILL BE DETERMINED. ADDITIONAL ATTENTION WILL BE GIVEN TO THE FILM-FORMING CHARACTERISTICS OF THE FUNCTIONALIZED POLYMERS. BONDING PROPERTIES TO TEFLON WILL ALSO BE EXAMINED FOR USE IN INCREASING THE MECHANICAL STRENGTH OF THE POLYMER FILM.

Principal Investigator:

Dr. timothy j. juhlke
DIRECTOR NEW PRODUCT DEV.

Business Contact:

Small Business Information at Submission:

Exfluor Research Corp
P.o. Box 7807 Austin, TX 78712

EIN/Tax ID:
DUNS: N/A
Number of Employees: N/A
Woman-Owned: No
Minority-Owned: No
HUBZone-Owned: No